20310331132321 has 8 divisors (see below), whose sum is σ = 21224848765824. Its totient is φ = 19415912787600.

The previous prime is 20310331132313. The next prime is 20310331132409. The reversal of 20310331132321 is 12323113301302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20310331132321 - 2³ = 20310331132313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20310331532321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5024820130 + ... + 5024824171.

It is an arithmetic number, because the mean of its divisors is an integer number (2653106095728).

Almost surely, 2^{20310331132321} is an apocalyptic number.

It is an amenable number.

20310331132321 is a deficient number, since it is larger than the sum of its proper divisors (914517633503).

20310331132321 is a wasteful number, since it uses less digits than its factorization.

20310331132321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10049644391.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 20310331132321 its reverse (12323113301302), we get a palindrome (32633444433623).

The spelling of 20310331132321 in words is "twenty trillion, three hundred ten billion, three hundred thirty-one million, one hundred thirty-two thousand, three hundred twenty-one".